Its great to know what feels abnormal can be normal!! Its horrible when it begins, it slips over into pyschois too and then everyone becomes distorted like something from a munch painting and the insane laughter fills my ears. Its stupid really, this was happening and I was,t connecting the dots, continuing in an over stimulating situation and trying to deal with the mania etc. Then like a bolt out of the blue I relaised what was happening. I immediately with drew from said situatuation and the effect was almost immediate, the insane laughter continued, but the head stopped spinning!